Trunk roads in Ireland are classified as National Routes. Numbers 1-50 are National Primary and 51-99 are National Secondary. Below is a map of the planned improvements or replacements of national secondary roads.
- Key to map
- Blue : Motorways
- Red : HQDCs - High Quality Dual Carriageways
- Dark Green : Standard dual carriageways or 2+2s (DC without stopping lanes)
- Light Green : Major single carriageway roads
- Red star : Under construction